syzbot


WARNING in __find_get_block

Status: upstream: reported on 2024/06/15 08:19
Reported-by: syzbot+8a819fb457300c5b1f74@syzkaller.appspotmail.com
First crash: 4d10h, last: 2d19h
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in __find_get_block ext4 5 526d 627d 0/27 auto-obsoleted due to no activity on 2023/05/09 20:00

Sample crash report:
------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 2927 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline]
WARNING: CPU: 1 PID: 2927 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline]
WARNING: CPU: 1 PID: 2927 at fs/buffer.c:1148 bh_lru_install fs/buffer.c:1262 [inline]
WARNING: CPU: 1 PID: 2927 at fs/buffer.c:1148 __find_get_block+0x110e/0x1350 fs/buffer.c:1312
Modules linked in:
CPU: 0 PID: 2927 Comm: jbd2/sda1-8 Not tainted 5.15.161-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__brelse fs/buffer.c:1148 [inline]
RIP: 0010:brelse include/linux/buffer_head.h:325 [inline]
RIP: 0010:bh_lru_install fs/buffer.c:1262 [inline]
RIP: 0010:__find_get_block+0x110e/0x1350 fs/buffer.c:1312
Code: 08 d0 9a ff e8 43 50 a1 ff fb e9 e4 f1 ff ff e8 f8 cf 9a ff e9 da f1 ff ff e8 ee cf 9a ff 48 c7 c7 20 6c 97 8a e8 42 78 66 ff <0f> 0b e9 c2 f1 ff ff 44 89 f1 80 e1 07 38 c1 0f 8c 86 f2 ff ff 4c
RSP: 0018:ffffc9000b77f680 EFLAGS: 00010246
RAX: b9996a1f8943a300 RBX: 0000000000000000 RCX: ffff88807f519dc0
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc9000b77f7d8 R08: ffffffff8166835c R09: ffffed10173667a8
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880741abe80
R13: 1ffff11017366cbe R14: ffff8880601f22b8 R15: ffff8880601f17a0
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8b0a8f80d0 CR3: 000000001a283000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jbd2_clear_buffer_revoked_flags+0x14b/0x260 fs/jbd2/revoke.c:498
 jbd2_journal_commit_transaction+0xd30/0x67f0 fs/jbd2/commit.c:548

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/16 23:35 linux-5.15.y 4878aadf2d15 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __find_get_block
2024/06/15 21:34 linux-5.15.y c61bd26ae81a f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __find_get_block
2024/06/15 18:11 linux-5.15.y c61bd26ae81a f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __find_get_block
2024/06/15 08:18 linux-5.15.y c61bd26ae81a f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __find_get_block
* Struck through repros no longer work on HEAD.